SU901861A1 - Ergomonitor - Google Patents

Description

(54) ERGOMONITOR

The invention relates to a measuring technique, in particular to devices for the medical diagnosis of heart. Noah Aryhmius and the definition of non-physical activity, at which the arrhythmia occurred, and can be used in scientific medical research. A device for detecting cardiac arrhythmias (cardiomonitor) is known, which makes it possible to recognize the presence of arrhythmias both at rest and during physical exercise or transients 1. This cardiac monitor, having arrhythmia, does not allow to judge the amount of physical activity which resulted in arrhythmias, which is especially important for patients with cardiovascular diseases during medical rehabilitation after suffering a heart attack of a scard, the closest to the proposed is an electronic ergometer containing converter, made on the basis of seismic sensor, impulse former: two, multivibrator, frequency divider, operation counter, power counter, control timer, timer interval setting block, individual data setting unit, acceptable threshold setting unit power threshold, zero setting unit, Re comparison circuit, indication resolution unit, register, IHSH circuit, indication switching unit, and power supply unit 2. The known Örometer allows measuring and recording otu and power ;; person, but does not answer to the heart at the time of performing a physical activity. Since, having performed a physical load, a person performs work, arrhythmia can be caused by a work performed by a person at a previous moment of time, it is of interest to determine the power developed by a person when performing work at that moment. The purpose of the invention is the determination and indication of the magnitude of the load at which cardiac arrhythmia occurs. This goal is achieved by the fact that a device comprising a housing, a converter, a pulse shaper, an adjustable high-frequency multivibrator, a unit for setting individual human data, a frequency divider, a work counter, a power counter, an indicator, a setting unit for a permissible threshold-operation, a block allowable power threshold, low-frequency multivibrator, mixer, timer, timer interval setting block, register, one element OR, comparison circuit, first comparison circuit, second circuit with power supply, power display power indication unit, display switching unit, installation unit to zero, power supply unit, equipped with cardiomonitor, arrhythmia signal conditioner, load indication resolution unit, at which arrhythmia occurs, second register, second installation unit, zero, second OR element and the output of the heart monitor is connected to the input of the arrhythmia signal generator, the output of which is connected to the control inputs of the load indication display block at which the arrhythmia of the second p indicator arises. the gistra, as well as with the input of the first element OR, while the outputs of the resolution block indicating the load at which the arrhythmia occurs are connected to the information inputs of the indicator, and the inputs to the outputs of the second register whose inputs are connected to the outputs of the second register whose inputs are connected to come out. the power counter, the inputs of the first register and the inputs of the first power comparison circuit; the setup input of the second register is connected to the timer output, the control input of the power meter and one of the installation inputs of this counter; the second installation input of the power meter is connected to the installation input of the first register and The output of the second set-up unit is zero, the input of which is connected to the output of the second power comparison circuit by the second input of the first OR element and with one of the inputs of the second OR element, the second input of which Connected to the display switching unit and the output to the control inputs of the power indication display and indicator, the input of the first installation unit to zero is connected to the output of the comparable operation circuit and the third input of the first OR element, and the frequency splitter is connected to the counting input of the power counter by its second by the entrance. The structural diagram of the ergomonitor is shown in the drawing. The ergomonitor consists of a transducer 1, a driver 2 impulses. high frequency multivibrator 3, divider 4 frequencies, operation counter, indicator b, unit 7, installation of individual human data, unit 8, installation of a populated operating threshold, diagram 9, comparison of operation; low-frequency multivibrator 10, mixer 11, timer 12, unit 13 for setting timer intervals, power counter 14, register 15, power comparison circuit 16, block 17 — setting power threshold, power comparison circuit 18, power indication resolution unit 19, display switching unit 20 , OR element 21, OR element 22, installation unit 23 to zero, installation unit 24 to zero, cardiac monitor 25, driver 26 - signaling arrhythmias, load indication resolution unit 27, at which the arrhythmia occurred, register 28 and power supply unit 29. The output of the transducer 1, consisting of at least one seismic sensor, is connected to the input of the pulse shaper 2, the output of which is connected to the first input of the high-frequency multivibrator 3. The frequency range of the multivibrator 3 is controlled by the unit 7 for setting individual human data. The output of the multivibrator 3 is connected to the counting input of the 4-frequency divider and the first input of the mixer 11. The frequency divider is connected to the counting input of the operation counter 5 by one output, a. the second output - to the counting output of the counter 14 power. The outputs of the work counter 5 are connected to the first information inputs of the indicator 6 and to the first inputs of the operation comparison circuit 9. To the second inputs of the operation comparison circuit 9, the installation block B of the permissible load threshold is connected, and the output of the comparison circuit 9 is connected to the third input of the OR element 22 and to the input of the installation block 23 to zero, the output of the latter is connected to: the installation inputs of the 4 frequency divider and the operation counter 5 and the input element 22 USH connected to the second input of the multivibrator 3 and with the control inputs of the divider 4 frequency and low frequency multivibrator 10, the output of which is connected to the second input of the mixer 11. The output of the mixer 11 is connected to the signal input indicator 6. The timer 12 output is connected to the control input of the power meter 14 — the first installation input of the power meter 14 and the setup input of the register 28. The time interval of the timer 12 is controlled by the interval setting unit 13, which is connected to the timer 12. The meter outputs 14 are connected to the register inputs 15 and 28 and with the first inputs of the power comparison circuit 16. The outputs of the register 15 are connected to the second inputs of the comparison circuit 16, the first inputs of the power comparison pin 18 and to the inputs of the power indication resolution unit 19. The output of the comparison circuit 16 is connected to the control input of the register 15. The power threshold setting block 17 is connected to the second inputs of the power comparison circuit 18, and the output of the circuit 18 is connected to the second input of the OR element 22, the first input of the OR element 21 and the block input 24 set to zero. The output of block 24 is connected to the second installation input of counter 14 and to the installation input of register 15. The switching unit 20 of the display is connected to the second input of the OR element 21, the output of which is connected to the control input of the power indication unit 19 and to the first control input of indicator 6 and the outputs of block 19 are connected to the second information inputs of the indicator 6. The heart monitor 25 is connected via its output to the input of an arrhythmia signal generator 26, which by its output is connected to the first input of the element 22 OR, the second control the input of indicator b, the control input of the resolution indication block 27, at which the arrhythmia occurred, and the control input of the register 28, which by its outputs are connected to the inputs of the block 27, whose outputs are connected to the third information inputs of the indicator 6, Ergomonitor works as follows in a way. Pre-switch unit 7 installation of individual data of a person set in a position corresponding to the individual wounds of a particular person (weight, height, average step length, rate of movement). The switch of the unit 8 of the permissible work threshold sets the permissible value of work for this person. The switch of the timer setting block 13 sets the time for which the power value will be estimated, and the switch of the power threshold setting block 17 sets the permissible power threshold for this person. When the power is turned on, blocks 4, 5, 14, 15 and 28 are automatically set to zero. The ergonomonitor is ready for operation. In this case, the output of the comparison circuit 9, the comparison circuit 18 and the output of the block 26 receive a signal at the inputs of the element 22 OR at the output of which a signal appears that arrives at the second input of the multivibrator 3, the control inputs of the multivibrator 10 and the divider 4 frequencies. As a result, the counting input the 4 frequency divider will be open for the arrival of pulses from the output of the multivibrator 3, which during the operation of the control pulse from the output of block 2 will be generated by the multivibrator 10. will be blocked, the mixer C will be closed at the output tivibratora 10. When walking or running person makes oscillatory motion in a vertical plane. The amplitude of these fluctuations depends on the individual data of a person (weight, height, etc.), but is on average 1.5-3 cm. Transducer 1 senses these vibrations and converts them into an electrical signal that goes to driver 2. . At the output of the latter, pulses are formed, the duration of which is proportional to the amplitude of the oscillations of the center of the person's body weight. These pulses go to the corresponding input of the multivibrator 3, which generates high-frequency pulses during the pulse from the output of block 2. The generation frequency of the multivibrator 3 is determined by the position of the switch of the block 7. The pulses from the output of multivibrator 3 arrive at the counting input of the divider 4 frequency, which is It is a multi-bit binary counter with two outputs. The frequency divider coefficient is chosen such that from the first output of divider 4 a pulse equivalent to 1 kgm comes out, and from the second - equivalent to 100 kgm. From the output of the divider 4 frequencies they: -. Pulses, equivalent to 100 kgm, are fed to the counting input of the counter 5 work. The code from the output of the counter 5 is fed simultaneously to the comparison circuit 9 and to the indicator b, which indicates the work done in the appropriate units. When the code from the output of the counter 5 matches the code of the allowable threshold 1p.bota set with the switch of the block 8, the signal of the reserve 9 generates the Reserve signal exhausted, which goes through the element .22 OR to the corresponding input of the multivibrator 3 and the latter starts to generate High frequency pulses continuously. Signal Reserve exhausted simultaneously arrives at the control unit. The divider 4 frequency input also prohibits the passage of pulses from the output of the multivibrator 3 to the counting input of the divider 4, and also enters the control input of the multivibrator 10 and provides the last generation mode. The low-frequency signal of the multivibrator Yu and the high-frequency signal of the multivibrator 3 enter the mixer 11, the output of which produces a burst of pulses. The arrival frequency of packs is equal to the frequency of multivibrator 10, and the frequency of filling pulses in a pack is the frequency of multivibrator 3. As the input divider 4 is closed, then the output of counter 5 will be a code.

equal to the pre-set permissible operating threshold, the value of which will be reflected in the indi-i 6. The signal from the output of the mixer 11 is fed to the signal input of the indicator 6, by which it generates a discontinuous signal and ensures that the indicator scale flashes, which attracts people's attention. In addition, the CQ signal of the operation comparison circuit 9 is supplied to the setting unit 23 to zero. Block 23 is a device that, after a certain time has elapsed, for example 30 seconds, produces a reset pulse (time relay). After 30 seconds, the block 23 sets the divider (frequency and work counter 5 to zero. Since the code from counter 5 is no longer equal to the code of the established allowable operation threshold, the comparison circuit 9 stops generating the reserve signal exhausted, the indicator b stops audible and visual signal, and the ergomonitor goes to its original state, and the measurement of work begins first. Time 30 s is selected so that the person can hear the signal, stop moving and read, the value of the achieved threshold from the indicator scale B. tea need this time you can choose another.

Measurement of the power developed by a person during walking or running is carried out as follows.

From the output of the 4th frequency divider, pulses equivalent to 1 kgm are fed to the counting input of the monosy counter 14, the control input of which receives the enabling signal from the output of timer 12. The duration of the enabling signal is determined by the position of the switch of the timer setting unit 13. Thus, in the time interval during which the controlling input of the counter 14 contains the enabling signal, the counter 14 receives pulses from the output of the divider 4 frequencies. In the counter 14, a binary code is generated corresponding to the power developed by the person during the movement for a given period of time. After a specified time interval has elapsed, the code .c of the output of the counter 14 enters the power comparison circuit 16 and the register 28. In block 16, the counter code 14 is compared with the register code 15, the register 15 stores the code corresponding to the power of the person in one of the preceding periods of time. Register 28 stores the code of the previous measurement interval. If the counter code 14 is smaller than the register code 15, the code in the register 15 is preserved, and when timer 12 is formed at the output of the next counting enable signal

14 and the register 28 are set to zero and the power is measured at a regular time interval. In the counter 14, a new code is formed.

If for some time interval the counter code 14 becomes larger than the register code 15, then at the output of the comparison circuit 16 a signal is formed, by means of which the code from counter 14 is overwritten into register 15. After that, under the action of a signal from timer 12, the counter 14 Register 28 is set to zero and power measurement begins at a subsequent time interval.

Thus, in register 15, a code is formed that corresponds to the maximum power that a person developed while walking or running, and in register 28 a code is stored corresponding to the power for the previous interval — Time,

The register code 15 is compared in comparison circuit 18 with a threshold value previously set using the switches of the power threshold setting unit 17. When this threshold is reached, the output of the comparison circuit 18 produces a signal that simultaneously enters the elements 21 and 22 of the S1I block 24 of the setting to zero, from the output of the element 22 OR the signal arrives at the input of the multivibrator 3, the control inputs of the splitter 4 frequency and the multivibrator 1 The sonic and visual indications of the ergonomic monitor are activated in the same way. The signal from the output of the element 21 OR is fed to the control inputs of the power permission display unit 19 and the indicator 6. With this signal, the unit 19 will pass the code from the register 15 to the information inputs of the indicator 6, and the indicator 6 will stop indicating the operation value and will indicate the power value By the CMM, an automatic indication of the digital value of the achieved power threshold will occur.

Claims (1)

At the same time, the signal from the comparison circuit 18 arrives at the installation block 24 to zero, made similar to the installation block 23 to zero. After 30 seconds, the block 24 is set to zero, the counter 14 and the register 15, the circuit 18 will stop generating a comparison and power indication signal (threshold achieved) and the audio indication will stop. The display switching unit 20 is a single-pulse device (R.5 trigger) with a button and serves to read the maximum power value if necessary. To do this, just press the button and the indicator will indicate the power value reached by the person at one of the preceding points in time. The power indication time in this case will be equal to the time for which the button is pressed. OjiHOBpeMeHHO with the measurement of the work and power of the ergomonitor monitors the functioning of the heart with the help of the heart monitor 25. It can happen that a person develops the power to cause a heart arrhythmia. This power may turn out to be less than the permissible peak power due to the overall manpower of the person (for example, a large amount of work has been done before) But the mere fact of arrhythmia is sufficient to stop the load. The presence of arrhythmias causes the output of the heart monitor 25 to produce a signal that enters the form input. Mm-26 of the arrhythmia signal, which is a single-pulse circuit, for example, a waiting multivibrator with a long pulse duration (30 s). The occurrence of this pulse includes, in a similar way, the acoustic and visual indication of the ergomonitor (via element 22 OR). The same impulse is fed to the control input of the load indication display unit 27, at which the alarm has occurred, to the control input of the indicator 6 and to the control input of the register 28 With this signal, the block 27 will skip the register code 28 and to the information inputs of the indicator 6, indicator 6 will stop indicating the operation value and will begin to indicate the value of the power at which the arrhythmia occurred. The occurrence of a signal on the control, the register 28 will stop the code from the counter 14 to the register 28 and reset this register after the end of the int Measurement interval (in case the timer interval is less than 30 s, for example, 1 or 10 s) After finishing the pulse from the driver 26, the ergomonitor will stop sounding and indicate the power at which the arrhythmia has occurred. When the next burst interval occurs, register 23 is re-zeroed. Thus, upon the occurrence of an arrhythmia, the ergomonitor will automatically indicate the value of the power of the previous measurement interval, which will correspond to the power at which the arrhythmia occurred, since the human body has inertia. Therefore, in cases of monitoring arrhythmia, the measurement interval should be set to 10 seconds, i.e. comparable with the time of the transition process in the human body. Having heard the sound indication (in any of the following cases: heart rhythm disturbance, reaching the threshold of operation or power threshold), the person stops moving and reads the value of work or power from the indicator. When powering off ergomoni-; A torus loses all accumulated information. The possibility of detecting arrhythmias along with measuring work and power improves the safety of medical rehabilitation of patients with cardiovascular diseases. The proposed ergomonitor allows the motor mode to be expanded under the control of arrhythmias and set values, permissible work thresholds and power for patients with cardiovascular diseases in the practice of physical therapy and sanatorium jgopTHoa services, as well as research in the process of sports training, space flight or other extreme conditions Claim of the invention , mixer, timer, timer interval setting block, register, one element OR, comparison circuit, first power comparison circuit, second with a power comparison unit for it, a power indication resolution unit, an indication switching unit, a zero setting unit. a power supply unit, characterized in that, in order to determine and indicate the load value, with which the cardiac arrhythmia occurs, it is equipped with a heart monitor, a signal conditioner arrhythmias, the load indication indication block, at which arrhythmias occur, the second register, the second block of the zero setting and the second OR element, and the output of the cardiac monitor is connected to the input of the arrhythmia signal generator, the output of which connected to the control inputs of the resolution block indicating the load at which an arrhythmia, indicator and second register occurs, as well as the input of the first OR element, while the outputs of the block indicating the load indication at which the arrhythmia occurs are connected to the information inputs of the indicator, and the inputs with the outputs of the second register, the inputs of which are connected to the outputs of the power meter, the inputs of the first register and the inputs of the pen of the comparison circuit of the ginost, installation, the input of the second register is connected with the output of the timer, control in home power counter and ne of the inputs of the installation